1440324349 has 2 divisors, whose sum is σ = 1440324350. Its totient is φ = 1440324348.

The previous prime is 1440324299. The next prime is 1440324373. The reversal of 1440324349 is 9434230441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416995449 + 23328900 = 37643^2 + 4830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440324349 - 2⁹ = 1440323837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440324649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720162174 + 720162175.

It is an arithmetic number, because the mean of its divisors is an integer number (720162175).

Almost surely, 2^1440324349 is an apocalyptic number.

It is an amenable number.

1440324349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440324349 is an equidigital number, since it uses as much as digits as its factorization.

1440324349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1440324349 is about 37951.6053547146. The cubic root of 1440324349 is about 1129.3280127632.

The spelling of 1440324349 in words is "one billion, four hundred forty million, three hundred twenty-four thousand, three hundred forty-nine".